August 2, 2026
Good vibrations, bad arguments
Show HN: Tone Generator
A simple sound toy drops, and the comments instantly turn into a nerd fight
TLDR: This new browser tool plays exact tones for testing speakers, tuning, or checking hearing with no download needed. Commenters instantly made it more dramatic than the app itself, joking around, nitpicking sound facts, and debating whether anyone even needs it if they already use other audio tools.
A tiny browser tool that plays exact tones should have been a quiet little Show HN moment. Instead, the crowd treated it like a talent show, a science fair, and a comment-section cage match all at once. The project itself is easy to get: type in a number, hit play, and your browser makes that sound. It can help test speakers, check hearing, tune instruments, or just annoy everyone within earshot with a very high beep. Simple, useful, oddly hypnotic.
But the real entertainment was the reaction. One commenter immediately turned into a retro purist, basically daring the maker to go full time machine and “code it yourself like they did in the 1970s.” Another went gloriously deep on the age-old “mains hum” debate, swooping in with a full correction lecture and enough electrical detail to make everyone else clutch their coffee. That was the thread’s spiciest moment: the classic internet move where a fun toy becomes a battlefield over one tiny fact.
Meanwhile, the rest of the crowd delivered the comic relief. One person summed up the chaotic creative energy perfectly with, “I am making music right now.” Another gave the polite-but-devastating review: nice project, but they already use Audacity. Translation: neat, but the app I already know still owns my heart. So yes, it’s a tone generator—but in the comments, it became a nostalgia trip, a flex, and a very online argument about buzzing noises.
Key Points
- •The article describes a browser-based tone generator that plays user-selected frequencies instantly without downloads or setup.
- •It says the tool can be used for speaker and headphone testing, hearing checks, instrument tuning, audio education, tinnitus-related matching, and audio gear setup.
- •The article explains that low frequencies around 20 to 60 Hz are useful for subwoofer and rattle testing, while 200 Hz to 2 kHz is useful for evaluating voice-range playback.
- •It identifies 440 Hz as the standard A for tuning and recommends using a sine wave when matching pitch by ear.
- •It explains that sine waves contain a single frequency, while square, sawtooth, and triangle waves add extra frequencies that change the sound character.